Physics, 18.04.2020 03:25, harmony000011
A textbook of mass 2.05 kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.200 m , to a hanging book with mass 3.05 kg . The system is released from rest, and the books are observed to move a distance 1.30 m over a time interval of 0.850 s .
A. What is the tension in the part of the cord attached to the textbook?
B. What is the tension in the part of the cord attached to the book?
C. What is the moment of inertia of the pulley about its rotation axis?
Answers: 3
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Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?
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A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kgĀ·k and 128 j/kgĀ·k, respectively.
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A textbook of mass 2.05 kg rests on a frictionless, horizontal surface. A cord attached to the book...
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